Hexo is a static site generator built with Node.js that enables developers to create fast and efficient websites using Markdown, EJS, and Stylus. It offers features such as server-side rendering, plugin support, and easy deployment to hosting services like GitHub Pages and Netlify.

Tailwind CSS is a utility-first CSS framework that provides pre-defined classes for building responsive and customizable user interfaces.

A template or theme refers to a pre-designed layout or structure that provides a basic framework for building a specific type of application or website. It typically includes good design, placeholder content and functional features, allowing developers to customize and fill in the details according to their specific needs.

PostCSS is a popular open-source tool that enables web developers to transform CSS styles with JavaScript plugins. It allows for efficient processing of CSS styles, from applying vendor prefixes to improving browser compatibility, ultimately resulting in cleaner, faster, and more maintainable code.